Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual evento fez parte do campeonato mundial de cross country?
 ###Tabelas: CREATE TABLE financial_results (financial_results_id AUTO_INCREMENT PRIMARY KEY, Year INT, Turnover VARCHAR, Net income VARCHAR, Balance sheet total VARCHAR, Employees INT) CREATE TABLE highest_third_week_domestic_nett (highest_third_week_domestic_nett_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Movie VARCHAR, Year INT, Studio(s) VARCHAR, Third Week Nett. Gross INT) CREATE TABLE georgia_counties_ranked_by_per_capita_income (georgia_counties_ranked_by_per_capita_income_id AUTO_INCREMENT PRIMARY KEY, County VARCHAR, Per capita income VARCHAR, Median household income VARCHAR, Median family income VARCHAR, Population INT, Number of households INT) CREATE TABLE swindon_town_career_details (swindon_town_career_details_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Team VARCHAR, League Apps INT, League Goals INT, Cup Apps INT, Cup Goals INT) CREATE TABLE achievements (achievements_id AUTO_INCREMENT PRIMARY KEY, Year INT, Competition VARCHAR, Venue VARCHAR, Position VARCHAR, Event VARCHAR)  
SELECT Event FROM achievements WHERE Competition = world cross country championships